Go to the Column Styles section. Create a style rule for colelements with the ID firstCol that sets the column width to 24%.

Create a style rule for col elements belonging to the dataCols class that sets the column width to 19%.

Table Header Styles

Go to the Table Header Styles section. Create a style rule for the table header row group including every row within that row group that sets the row height to 60 pixels.

For the first thelement in the first row of the table header row group, create a style rule that sets its font size to 2em. (Hint: Use the first-of-typepseudo-class to select the first table row and first heading cell.)

For th elements in the first row of the table header row group that are not the first heading cell, create a style rule that sets the background color to transparent and the font color to black. (Hint: use the not selector with the first-of-typepseudo-class to select headings that are not first in the table row.)